| 1 | /*------------------------------------------------------------------------- | 
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| 2 | * | 
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| 3 | * indexfsm.h | 
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| 4 | *	  POSTGRES free space map for quickly finding an unused page in index | 
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| 5 | * | 
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| 6 | * | 
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| 7 | * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group | 
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| 8 | * Portions Copyright (c) 1994, Regents of the University of California | 
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| 9 | * | 
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| 10 | * src/include/storage/indexfsm.h | 
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| 11 | * | 
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| 12 | *------------------------------------------------------------------------- | 
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| 13 | */ | 
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| 14 | #ifndef INDEXFSM_H_ | 
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| 15 | #define INDEXFSM_H_ | 
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| 16 |  | 
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| 17 | #include "storage/block.h" | 
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| 18 | #include "utils/relcache.h" | 
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| 19 |  | 
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| 20 | extern BlockNumber GetFreeIndexPage(Relation rel); | 
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| 21 | extern void RecordFreeIndexPage(Relation rel, BlockNumber page); | 
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| 22 | extern void RecordUsedIndexPage(Relation rel, BlockNumber page); | 
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| 23 |  | 
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| 24 | extern void IndexFreeSpaceMapVacuum(Relation rel); | 
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| 25 |  | 
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| 26 | #endif							/* INDEXFSM_H_ */ | 
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| 27 |  | 
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